We present the theoretical results of a comprehensive study of the photoionization from excited Mg atoms in the spectral region below the Mg II 3p 2P limit using a B-spline-based configuration interaction approach. The variation of the doubly excited 1,3S, 1,3P, 1,3D, and 1,3F resonance structures along the autoionization series is discussed. The theoretical resonant energy and width, derived from the energy variation of the scattering phase shift across each resonance, are also presented.
Physical Review A
- Pub Date:
- May 2000
- Photoionization of atoms and ions;
- Line shapes widths and shifts;
- Electron correlation calculations for atoms and ions: excited states